i've actually got a set of Ernie ball custom gauge 5 string 135, 105, 85, 70, 50 from when i owned my 5 string corvette, do u reckon i could get away with using them? 135 will feel mahooosive and i'm not 100% sure it will fit in the bass nut! i don't really want to file it down, i may have to invest in another bass if it doesnt fit :-P